The plasma welding process brings the highest quality standards for industries such as aerospace, chemical engineering, energy production, and stainless steel boiler production.
Plasma arc welding (PAW) is an arc welding process similar to gas tungsten arc welding (TIG or GTAW). The electric arc is formed between an electrode and the workpiece.The key difference from GTAW (TIG) is that in PAW, the plasma arc can be separated from the shielding gas envelope. The plasma is then forced through a fine-bore copper nozzle which constricts the arc and the plasma exits the orifice at high velocities (approaching the speed of sound) and a temperature approaching 28,000 °C (50,000 °F) or higher.
The advantages of Plasma welding :
- Short assembly preparation times
- High stability of the arc column
- Narrow arc column, independent of the distance between the torch workpiece
- Improved weldability for materials with edge misalignment
- Narrow seam width
- Low distortion
- Low weld reinforcement
- Higher welding speed than TIG welding
- Reliable ignition of the arc
- Very good reproducibility of welding in automatic systems
- Exactly adjustable welding depth
- Spatter-free welding process
- Higher tolerances possible than with the laser
- The electrode is protected against contamination (oil, zinc,..)
- The lifetime of electrode is up to 30 times higher than TIG welding
- Faster welding: Higher heat concentration and plasma jet allow higher welding speeds.
- Penetration guarantee, 100% x-ray quality
- The heat affected zone is less than the gas tungsten arc
- Low degradation in the chemical composition of the welded material,
- Reducing or eliminating finishing operations
- Perfect visuality
You are welcome to call us if you have further questions about this technology. We would be delighted to advise you with regard to specific options for your company.